Incandescent burner for oil-lamps.



Patented Dec, 3|, l90 L" J. MCFARLANE Ki E; D. STERNE.

INCANDESCENT BURNER'FOB DEL LAMPS. (Application fll d Mar. 80, 1901.)

(No Model.)

Wjrj gij n: NORRIS qETEm co womumo WASNINGTON, n. c

Unrrrzn States n'rmvr rmcit.

JOHN MCFARLANE AND EDWARD D. STERNE, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNORS OF ONE-HALF TO OBADIAH A. PURDEY, OF WASHINGTON, DISTRICT OF COLUMBIA.

iNCANDESCENT BURNER FOR OIL-LAMPS.

SPECIFICATKUN forming part of Letters Patent N0. 690,117, dated December 31, 1901.

Application filed March 30,1901. Serial No. 53,671- (No model.)

To all whom it may cmwei'n: trollinginlet-valve, which consists of the tube 50 Be itknown thatwe,JOHNMoFARLANE and F, having an angular flange f and a fluted EDWARD D. STERNE, citizens of the United disk G, hereinafter described. The periph- States, residing at \Vashington, in the Discry of the fiangef, above referred to, is fluted trict of Columbia, haveinvented new and useand is of the same diameter as the air-inlet 'fnl Improvements in Incandescent Burners tubeB. The fluted disk Gr, above mentioned, 55 for Oil-Lamps, of which the following is a has a stem g, operating in suitable webs g specification. g, is limited in its movement by the stop 9 Our invention relates to improvements in and is held from rotation by means of the 10 incandescent burners for oil-lamps; and it projection g operating in a vertical keyway.

consists in the novel features of construction (Shown in dotted lines.) The keyway above 60 hereinafter described, reference being had mentioned is of such length that the stem is to the accompanying drawings, which illusfree to be moved up and down in the webs. t-rate one form in which we have contem- The disk G is so mounted on the stem that plated embodying our invention; and said insmall openings g are formed between it and vention is fully disclosed in the following the fluted flange f, permitting the passage of 65 description and claims. air through the same at all times. The tube Referring to the drawings, Figure 1 is a F is so mounted in the webs b b that it is cavertical sectional view of our device. Fig. 2 pable of being reciprocated in the same, so is a vertical section of a modification. Fig. 3 as toincrease or decrease the opening between is a vertical sectional View of still another the flangefand the top edge of the air-inlet 7o modification, and Fig. 4 is a perspective view tube B, whereby the supply of air may be of the air-inlet-valve disk. regulated. The tube F is held in its ad The object of our invention is to provide justed position by means of friction between an improved incandescent burner for use in it and the webs b 1).

connection with oil-lamps whereby the gas The operation of the device is as follows: generated about the wick is thoroughly mixed The wick is lighted through the opening 0 with air, combustion thereby rendered more Air is drawn in through the perforations c' complete, and a better flame afforded with and also through the openings 9 the tube 0 which to heat the mantle. F, together with the flange f, being set to A reservoirA, having an internal air-inlet furnish the required amount of air for the tube B, is provided with the chimney-support flame which is required to heat the mantle to C, secured in a suitable opening in the top of incandescence. As the wick becomes heated the same. This support 0 is cylindrical in the flame thereat becomes smaller and a gas 35 form, is provided with perforations 0 near is generated thereby, which rises and burns the upper portion, as at c, and with a flange inside the mantle, thus illuminating the same 0 This flange c has perforations c ,amantleto incandescence. The air-supply can be so ort c and chimne -retainin )ron s 0 further re ulated in direction of a lication p 7 y D b b A suitable opening 0 in the support C and a to the flame, as well as to quantity, by op- 40 door c (shown in Fig. 1) are adapted to be crating the disk G through the stem g.

used as a means of access in lighting. A In the modification shown in Fig. 2 the air-- wick D surrounds the air-inlet tube B and inlet tube H is closed at the top except for an operates within the cylindrical support 0. opening adapted to receive the valve I. This The usual arm E, having a thumb-piece e valvelis cylindrical in form, is provided with 5 and provided with the wick-clip (shown in a dome-shaped top having a central opening dotted lines) is arranged to project through therein, and is also provided with vertical the top of the reservoir for operating the said slots 71 in the lower part thereof. This valve wick D. slides in the top of the tube H and has a stem Within the air-inlet tube B is an air-coni secured to a web in the bottom thereof.

The operation of this form of our device is similar to that of the former already described. The valve being raised and the openings made by the slots 2' increased in length, more air is admitted to the burner.

Fig. 3 discloses a construction where the air-inlet tube K is provided at the top with a perforated reduced portion 70, extending to a point adjacent to the mantle. Operating within this portion 70 is the valve L, which is adapted to fit snugly within the said portion is and which has a dome-shaped top provided with an opening Z therein, through which air is admitted at all times. A stem Z is secured to said valve L by means of the web Z In this instance the valve L is moved upward, thus exposing alarger number of perforations in the portion k, and hence admitting more free air to the burner, as is clearly shown in the drawings.

Having described our invention, what we claim, and desire to secure by Letters Patent, is

1. In an incandescent burner for oil-lamps, the combination with a reservoir having an air-inlet tube, of a chimney-support perforated adjacent to the top of the wick, an innertube provided with a flange adapted to regulate the free air-supply through said airinlet tube, a disk adapted to substantially close the openingin said inner tube and means for operating said disk whereby the air-supply passing therethrough may be regulated,

substantially as described.

2. In an incandescent burner for oil-lamps, the combination with a reservoir having an air-inlet tube communicating with the burner, of a chimney-support perforated adjacent to the top of the wick and provided with an opening whereby access may be had to the said wick, a door for closing said opening, an inner tube provided with a flange adapted to regulate the free air-supply through said airinlet tube, a disk adapted to substantially close the opening in said air-inlet tube and means for operating said disk whereby the air-supply passing therethrough may be regulated, substantially as described.

3. In an incandescent burner for oil-lamps, the combination with a reservoir having an air-inlet tube communicating with the burner, of webs secured within said air-inlet tube, an inner tube provided with a flange, said inner tube being adapted to operate in said webs and also to regulate the free air-supply through said air-inlet tube, webs secured within said second-mentioned air-inlet tube, a disk having a stem, said disk substantially closing the opening in said inner tube, and said stein being adapted to operate in said webs within said innertube, whereby the air-supply passing therethrough maybe regulated, and means whereby said stem is held from rotation in said webs, substantially as described.

In testimony whereof we atfix our signatures in presence of two witnesses.

JOHN MOEARLANE. EDWARD D. STERNE. 

